Is the text I encode or decode sent to a server?

No. All encoding and decoding operations are performed entirely within your browser using JavaScript. Your input text, including sensitive strings like API keys, authentication tokens, or passwords, never leaves your device.

What is Base64 encoding used for?

Base64 encodes binary data as a string of printable ASCII characters, making it safe to transmit through systems that handle text only. It is used in email attachments (MIME), JWT tokens, embedding images in HTML/CSS via data URIs, and encoding API credentials in HTTP Basic Authentication headers.

Why does my Base64 decoded output look garbled?

Garbled output usually means the input string is not valid Base64, or it encodes binary data (such as a file) rather than readable text. Base64 strings must have a length that is a multiple of 4 — if your string is missing trailing = padding characters, add them before decoding. Also ensure the string does not contain line breaks or spaces introduced by copy-pasting.

Can I convert text through multiple encoding steps, such as Base64 of a URL-encoded string?

Yes. You can copy the output of one encoding operation and paste it as the input for another to chain multiple encoding steps. The real-time conversion updates immediately, so you can see the intermediate result at each step before applying the next encoding layer.

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Text Encoding Converter

Convert text between plain text, hex, binary, octal, decimal, Base64, URL, HTML entities, Unicode, ASCII, ROT13, and Morse code.

Auto-detect input encoding

Input

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Encoding Reference

How to Use

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Enter your text

Type or paste text into the input area. The encoder supports multiple encoding formats for different use cases and programming needs.

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Choose encoding type

Select the encoding — URL encode/decode, HTML entities, Base64, Unicode escape sequences, or binary. View encoded and decoded results side by side.

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Copy encoded text

Click Copy to grab the encoded or decoded result. Perfect for web development, API parameter encoding, and data transformation tasks.

What is Text Encoding Converter?

Text encoder and decoder is a versatile real-time conversion tool supporting Base64, Hex, Binary, URL encoding, Morse code, and ASCII transformations in a single interface. It converts text or encoded strings instantly as you type, making it a Swiss-army knife for developers, security researchers, and students learning encoding fundamentals. All encoding and decoding happens in the browser with no data sent to any server.

Why use Text Encoding Converter?

Having Base64, Hex, URL, Morse, Binary, and ASCII encoding in one place eliminates the need to switch between multiple tools for different encoding tasks. Real-time conversion provides immediate feedback, which is invaluable when debugging encoded API responses, obfuscated strings, or network payloads. The browser-based implementation means sensitive strings such as authentication tokens or API keys are never transmitted over the network.

lockComplete privacy — Your files never leave your device or browser.
boltInstant processing — No wait times, no server queues, no upload delays.
money_off100% free — No subscriptions, no credits, no hidden fees.
person_offNo registration — Start using immediately, no account needed.
devicesWorks everywhere — Any modern browser on desktop, tablet, or mobile.

How it works

A backend developer decodes a Base64-encoded JWT payload in real time to inspect its claims during API debugging. A security researcher converts hexadecimal shellcode strings to binary for analysis without leaving the browser. A student learning computer science encodes their name in binary and Morse code as an interactive exercise.

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Pro Tip

URL encoding treats spaces as %20 by default — if you need the plus-sign convention used in HTML form submissions, encode spaces manually as + after URL-encoding the rest of the string. When decoding Base64, add = padding characters to the end if the string length is not a multiple of 4 to avoid invalid character errors.

Frequently Asked Questions

The tool supports Base64, Hexadecimal, Binary, URL encoding (percent-encoding), Morse code, and ASCII code conversion. These cover the most common encoding formats used in web development, network protocols, security research, and educational contexts.

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